The passage implies that the strain on freshwater aquifers caused by poor irrigation patterns may be reduced by all of the following methods EXCEPT

A． Researchers have not yet discovered a means of transporting photons more efficiently.
B． Their primary limitation is the density of connections required between electronic microchip gates.
C． Their accuracy level is poor at 8 to 11 bits, but still superior to that of electronic computers.
D． They invariably rely on electronic circuits to preprocess input data for computation.
E． Both analog and digital forms of optic computing are presently being developed by scientists.

A． Digital partitioning algorithms could be applied to electronic, and not just optical circuits.
B． The speed of photons could be shown to be significantly greater than that of electrons.
C． The precision level in basic operations can be substantially increased without great expense.
D． The accuracy of electronic circuits used to preprocess input data and post- process data could be greatly increased.
E． The microchips optical computer systems were shown to require an increasing density of interconnections.